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Troubleshooting wireless connection problems, Cannot create a WLAN connection - network controller driver

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Troubleshooting wireless connection problems Some possible causes for wireless connection problems include the following: ● Wireless device is not installed correctly or has been disabled. ● Wireless device or router hardware has failed. ● Network configuration (SSID or security) has been changed. ● Wireless device encountered interference from other devices. NOTE: Wireless networking devices are included with select computer models only. If wireless networking is not listed in the feature list on the side of the original computer package, you may add wireless networking capability to the computer by purchasing a wireless networking device. Before working your way through the sequence of possible solutions to your network connection problem, be sure that device drivers are installed for all wireless devices. Use the procedures in this chapter to diagnose and repair a computer that does not connect to the network you want to use. Cannot create a WLAN connection If you have a problem connecting to a WLAN, confirm that the integrated WLAN device is properly installed on your computer: NOTE: Windows includes the User Account Control feature to improve the security of your computer. You may be prompted for your permission or password for tasks such as installing software, running utilities, or changing Windows settings. Refer to Windows Help and Support for more information. 1. Select Start > Computer > System properties. 2. In the left pane, click Device Manager. 3. Identify the WLAN device from the Network adapters list. The listing for a WLAN device may include the term wireless, wireless LAN, WLAN, or 802.11. If no WLAN device is listed, either your computer does not have an integrated WLAN device, or the driver for the WLAN device is not properly installed. For more information on troubleshooting WLANs, refer to the Web site links provided in Help and Support. 26 Chapter 2 Wireless, modem, and local area network

Section	Page
Features	13
Identifying hardware	13
Top components	13
TouchPad	13
Lights	15
Buttons, speakers, switches, and fingerprint reader (select models only)	16
Keys	18
Front components	19
Right-side components	20
Left-side components	21
Bottom components	23
Display	23
Wireless antennas (select models only)	24
Additional hardware components	26
Identifying the labels	26
Wireless, modem, and local area network	28
Using wireless devices (select models only)	28
Identifying wireless and network icons	29
Using the wireless controls	29
Using the wireless button	29
Using Wireless Assistant software (select models only)	30
Using HP Connection Manager (select models only)	30
Using operating system controls	30
Using a WLAN	31
Setting up a WLAN	31
Protecting your WLAN	31
Connecting to a WLAN	33
Roaming to another network	33
Using HP Mobile Broadband (select models only)	34
Inserting a SIM	34
Removing a SIM	35
Using Bluetooth wireless devices (select models only)	37
Bluetooth and Internet Connection Sharing (ICS)	37
Troubleshooting wireless connection problems	38
Cannot create a WLAN connection	38
Cannot connect to a preferred network	39
Network status icon is not displayed	39
Current network security codes are unavailable	39
WLAN connection is very weak	40
Cannot connect to the wireless router	40
Using the modem (select models only)	41
Connecting a modem cable	41
Connecting a country-specific modem cable adapter	42
Selecting a location setting	42
Viewing the current location selection	42
Adding new locations when traveling	43
Solving travel connection problems	44
Connecting to a local area network (LAN)	45
Pointing devices and keyboard	46
Using pointing devices	46
Setting pointing device preferences	46
Using the TouchPad	46
Turning the TouchPad on and off	46
Navigating	46
Selecting	47
Using TouchPad gestures	48
Scrolling	48
Pinching/Zooming	48
Rotating	49
Three-finger flick	49
Connecting an external mouse	50
Using the keyboard	50
Using hotkeys	50
Displaying system information	52
Initiating Sleep	52
Decreasing screen brightness	52
Increasing screen brightness	52
Switching the screen image	52
Opening the default e-mail application	53
Opening the default Web browser	53
Muting speaker sound	53
Decreasing speaker sound	53
Increasing speaker sound	53
Playing the previous track or section of an audio CD or a DVD	53
Playing, pausing, or resuming an audio CD or a DVD	53
Playing the next track or section of an audio CD or a DVD	53
Using QuickLook	53
Using QuickWeb	55
Using the embedded numeric keypad	56
Enabling and disabling the embedded numeric keypad	56
Switching key functions on the embedded numeric keypad	56
Using an optional external numeric keypad	57
Cleaning the TouchPad and keyboard	58
Multimedia	59
Multimedia features	59
Identifying your multimedia components	59
Adjusting the volume	60
Multimedia software	61
Opening preinstalled multimedia software	62
Using multimedia software	62
Installing multimedia software from a disc	63
Audio	64
Connecting external audio devices	64
Checking your audio functions	64
Video	66
Connecting an external monitor or projector	66
Using the external monitor port	66
Using the HDMI port	66
Configuring audio for HDMI	67
Optical drive (select models only)	68
Identifying the installed optical drive	68
Using optical discs (CDs, DVDs, and BDs)	68
Selecting the right disc (CDs, DVDs, and BDs)	68
CD-R discs	69
CD-RW discs	69
DVD±R discs	69
DVD±RW discs	69
LightScribe DVD+R discs	69
Blu-ray Discs (BDs)	69
Playing a CD, DVD, or BD	70
Configuring AutoPlay	70
Changing DVD region settings	71
Observing the copyright warning	71
Copying a CD or DVD	71
Creating (burning) a CD, DVD, or BD	72
Removing an optical disc (CD, DVD, or BD)	72
Troubleshooting	73
The optical disc tray does not open for removal of a CD, DVD, or BD	73
The computer does not detect the optical drive	74
Preventing playback disruptions	75
A disc does not play	75
A disc does not play automatically	76
A movie stops, skips, or plays erratically	76
A movie is not visible on an external display	76
The process of burning a disc does not begin, or it stops before completion	76
A device driver must be reinstalled	77
Obtaining the latest HP device drivers	77
Obtaining Microsoft device drivers	78
Webcam	79
Webcam tips	79
Adjusting webcam properties	79
Power management	81
Setting power options	81
Using power-saving states	81
Initiating and exiting Sleep	81
Initiating and exiting Hibernation	82
Using the battery meter	82
Using power plans	82
Viewing the current power plan	83
Selecting a different power plan	83
Customizing power plans	83
Setting password protection on wakeup	83
Using external AC power	84
Connecting the AC adapter	84
Using battery power	85
Finding battery information in Help and Support	85
Using Battery Check	86
Displaying the remaining battery charge	86
Inserting or removing the battery	86
Charging a battery	87
Maximizing battery discharge time	88
Managing low battery levels	88
Identifying low battery levels	88
Resolving a low battery level	90
Resolving a low battery level when external power is available	90
Resolving a low battery level when a charged battery is available	90
Resolving a low battery level when no power source is available	90
Resolving a low battery level when the computer cannot exit Hibernation	90
Calibrating a battery	90
Step 1: Fully charge the battery	90
Step 2: Disable Hibernation and Sleep	91
Step 3: Discharge the battery	91
Step 4: Fully recharge the battery	93
Step 5: Reenable Hibernation and Sleep	93
Conserving battery power	93
Storing a battery	93
Disposing of a used battery	94
Replacing the battery	94
Testing an AC adapter	95
Shutting down the computer	95
Drives	97
Identifying installed drives	97
Handling drives	97
Improving hard drive performance	99
Using Disk Defragmenter	99
Using Disk Cleanup	99
Using HP 3D DriveGuard	100
Identifying HP 3D DriveGuard status	100
Using HP 3D DriveGuard software	101
Using external drives	102
Using optional external devices	102
Replacing the hard drive	103
External devices	117
Using a USB device	117
Connecting a USB device	117
Stopping and removing a USB device	117
Using USB legacy support	118
Using an eSATA device	119
Connecting an eSATA device	119
Stopping and removing an eSATA device	119
Using external drives	121
Using optional external devices	121
External media cards	122
Using Media Card Reader cards	122
Inserting a digital card	122
Stopping and removing a digital card	123
Using ExpressCards (select models only)	124
Configuring an ExpressCard	124
Inserting an ExpressCard	124
Stopping and removing an ExpressCard	125
Memory modules	127
Adding or replacing memory modules	128
Security	139
Protecting the computer	139
Using passwords	140
Setting passwords in Windows	140
Setting passwords in Computer Setup	140
BIOS administrator password	141
Managing a BIOS administrator password	142
Entering a BIOS administrator password	143
Using Computer Setup DriveLock	143
Setting a DriveLock password	144
Entering a DriveLock password	145
Changing a DriveLock password	146
Removing DriveLock protection	147
Using Computer Setup Auto DriveLock	147
Entering an Automatic DriveLock password	147
Removing Automatic DriveLock protection	148
Using Computer Setup security features	149
Securing system devices	149
Viewing Computer Setup System Information	149
Using Computer Setup System IDs	150
Using antivirus software	151
Using firewall software	152
Installing critical updates	153
Using HP ProtectTools Security Manager (select models only)	154
Installing a security cable	155
Software updates	156
Updating software	156
Updating the BIOS	158
Determining the BIOS version	158
Downloading a BIOS update	159
Updating programs and drivers	161
Using SoftPaq Download Manager	162
Backup and recovery	163
Backing up your information	164
Performing a recovery	165
Using the Windows recovery tools	165
Using f11	166
Using a Windows Vista operating system DVD (purchased separately)	166
Computer Setup	167
Starting Computer Setup	167
Using Computer Setup	167
Navigating and selecting in Computer Setup	167
Restoring factory settings in Computer Setup	168
Computer Setup menus	168
File menu	169
Security menu	169
System Configuration menu	170
MultiBoot	175
About the boot device order	175
Enabling boot devices in Computer Setup	177
Considering boot order changes	178
Choosing MultiBoot preferences	179
Setting a new boot order in Computer Setup	179
Dynamically choosing a boot device using the F9 prompt	179
Setting a MultiBoot Express prompt	180
Entering MultiBoot Express preferences	180
Management and printing	181
Using Client Management Solutions	181
Configuring and deploying a software image	181
Managing and updating software	182
HP Client Manager for Altiris (select models only)	182
HP Client Configuration Manager (CCM) (select models only)	184
HP System Software Manager (SSM)	185

Match case Limit results 1 per page

Troubleshooting wireless connection problems

Some possible causes for wireless connection problems include the following:

●

Wireless device is not installed correctly or has been disabled.

●

Wireless device or router hardware has failed.

●

Network configuration (SSID or security) has been changed.

●

Wireless device encountered interference from other devices.

NOTE:

Wireless networking devices are included with select computer models only. If wireless

networking is not listed in the feature list on the side of the original computer package, you may add

wireless networking capability to the computer by purchasing a wireless networking device.

Before working your way through the sequence of possible solutions to your network connection

problem, be sure that device drivers are installed for all wireless devices.

Use the procedures in this chapter to diagnose and repair a computer that does not connect to the

network you want to use.

Cannot create a WLAN connection

If you have a problem connecting to a WLAN, confirm that the integrated WLAN device is properly

installed on your computer:

NOTE:

Windows includes the User Account Control feature to improve the security of your computer.

You may be prompted for your permission or password for tasks such as installing software, running

utilities, or changing Windows settings. Refer to Windows Help and Support for more information.

Select

Start

Computer

System properties

In the left pane, click

Device Manager

Identify the WLAN device from the Network adapters list. The listing for a WLAN device may include

the term

wireless

wireless LAN

WLAN

, or

802.11

If no WLAN device is listed, either your computer does not have an integrated WLAN device, or

the driver for the WLAN device is not properly installed.

For more information on troubleshooting WLANs, refer to the Web site links provided in Help and

Support.

Chapter 2

Wireless, modem, and local area network